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Offseason Movement: The ‘Stros signed Aaron Boone in the offseason, but he recently announced that he’s scheduled to undergo open heart surgery and therefore his season, if not his career, is over. Houston also added pitchers Mike Hampton and Clay Hensley, as well as outfielder Jason Michaels and shortstop Jason Smith.

Top Prospect: Jason Castro, C
The 21-year old catcher was the first of five draft selections for Houston in 2008. Castro has flashed good plate discipline and if he develops, could add power to an already above-average bat. He probably won’t blow anyone away defensively, but he’s more than adequate behind the dish and should make a solid overall player in the future.

The Big Question: Where’s the pitching?
Roy Oswalt is a freak – a true No. 1 starter who usually gives the Astros a win every five days and halts losing streaks with ease. But after him, the starting rotation looks awfully bleak. Mike Hampton is never healthy, Wandy Rodriguez strained an oblique muscle earlier this spring and Brian Moehler hasn’t looked particularly great to this point. The fifth spot in the rotation is up for grabs between Brandon Backe, Russ Ortiz and Jose Capellan. Yikes.

Outlook: The Astros’ lineup is pretty solid. Kazuo Matsui has good speed, Hunter Pence has above average power (although he needs to lift his average quite a bit), Lance Berkman is one of the best switching hitters in baseball and Carlos Lee continues to drive the ball out of the park and knock in runs. Geoff Blum also had a career-high in home runs last year with 14 and Michael Bourn has demonstrated the ability to get on base. The bullpen is solid as well, led by closer Jose Valverde, who topped the NL last year in saves with 44. But after Roy Oswalt, the starting rotation could be the worst in baseball and that’s why Houston is destined to finish near the bottom of the NL Central Division. They just don’t have enough quality arms and while there are things to like about the lineup, the offense just isn’t good enough to carry this club on its own. Oswalt is also a candidate to be dealt at the trade deadline.

Projection: 5th NL Central

Less than a month before pitchers and catchers report, here are some of the big names still available: Manny freaking Ramirez, Adam Dunn, Bobby Abreu, Ken Griffey, Orlando Hudson, Frank Thomas, and to a lesser extent, Kevin Millar (20 homers last season) and Orlando Cabrera. To put this in perspective, the Astros signed pitcher Russ Ortiz to a minor league deal a few days ago, the Dodgers signed reliever Guillermo Mota, the Angels inked Darren Oliver for one year, and the White Sox brought back a Bartolo Colon who is on the downside of his career. Clearly, it’s a pitchers’ market this off-season, and it’s almost mind-boggling that Ramirez has gone almost three full months without being signed.

Part of the problem here is that the big spenders (ahem, New York teams) have blown their collective load on the likes of CC Sabathia, AJ Burnett, Mark Teixeira, Francisco Rodriguez, etc., leaving a team like the Dodgers the likely scenario for Man-Ram in 2009, which at the end of the day is probably best for both sides anyway. But some of those other guys are going to have trouble finding work, or they are going to take a recession-friendly deal from a team they wouldn’t have signed with otherwise. It’s already happened with Pat Burrell in Tampa and Jason Giambi with Oakland.

In other more recent news, the Red Sox avoided arbitration with Kevin Youkilis on Thursday, agreeing to terms on a four-year deal. And the Dodgers finally released beleaguered outfielder Andruw Jones, who the Braves are considering bringing back for the league minimum salary. The Braves are also mulling over whether to bring back injury-plagued LHP Tom Glavine for one more season.